Galvanized Steel Trash Can How Much Energy Is Needed To Heat A Galvanized Steel Nail To The Point Where It Will Melt A Plastic Bottle?

How much energy is needed to heat a galvanized steel nail to the point where it will melt a plastic bottle? - galvanized steel trash can

I have to connect a copper wire to a battery, and heated a galvanized nail by nail. I have to use a battery, so that:

a) What kind of battery do I need
b) How long does it take to go from the room temperature, 70 degrees (F), until the point at which plastic melts?

In addition, the plastic is I only spoke about a water bottle, no industrial-grade plastic or something.